UPSC Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank

done Chemistry, Matter and its Composition Total Questions - 61

• question_answer1)
  Who among the following is called. The father of modem chemistry?
  A)
  Michael Faraday     done clear
  B)
  Lavoisier done clear
  C)
  Proust                    done clear
  D)
         Linus Pauling done clear
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• question_answer2)
  Match the following

  A.	Azidothymidine	1.	Antibiotic
  B.	cis-Platin and taxol	2.	Drugs for AIDS patient
  C.	Streptomycin	3.	Drugs for treating cancer patients
  D.	Paracetamol	4.	Antipyretic

   
  A)
  A-2,   B-3,   C-1,   D-4 done clear
  B)
  A-1,   B-2,   C-4,   D-3 done clear
  C)
  A-4,   B-2,   C-3,   D-1 done clear
  D)
  A-1,   B-2,   C-3,   D-4 done clear
  View Solution play_arrow

• question_answer3)
        The chemical technique applied to find out age of fossils is knows as
  A)
  Carbon dating     done clear
  B)
        Nuclear fusion done clear
  C)
  Photosynthesis    done clear
  D)
        Fermentation done clear
  View Solution play_arrow

• question_answer4)
  The chemical formula for 'laughing gas' is
  A)
  \[{{N}_{2}}O\] (Nitrous oxide) done clear
  B)
  \[NO\] (Nitric oxide) done clear
  C)
  \[N{{O}_{2}}\] (Nitrogen dioxide) done clear
  D)
  \[{{N}_{2}}{{O}_{5}}\] (Nitrogen pentoxide) done clear
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• question_answer5)
        The compound used as 'artificial sweetener' is
  A)
  Saccharine         done clear
  B)
         Tartaric acid done clear
  C)
  citric acid          done clear
  D)
         octane done clear
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• question_answer6)
        The chemical name of 'Marsh gas' is
  A)
  Ethene  done clear
  B)
                            Methane done clear
  C)
  Propane           done clear
  D)
         Hexane done clear
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• question_answer7)
        Wooden pencil used for writing contains
  A)
  Graphite    done clear
  B)
         Lead done clear
  C)
  Salt                       done clear
  D)
         Cane sugar done clear
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• question_answer8)
        The chemical formula of Borax is
  A)
  \[N{{a}_{2}}{{B}_{4}}{{O}_{7}}\]   done clear
  B)
         \[CaCOC{{I}_{2}}\] done clear
  C)
  \[BaS{{O}_{4}}\]           done clear
  D)
         \[Ca{{(S{{O}_{4}})}_{2}}\] done clear
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• question_answer9)
        The chemical formula of plaster of parts is                           [BPSC]
  A)
  \[CaS{{O}_{4}}.5{{H}_{2}}O\]     done clear
  B)
         \[2CaS{{O}_{4}}.{{H}_{2}}O\] done clear
  C)
  \[(CaS{{O}_{4}}).2{{H}_{2}}O\] done clear
  D)
  \[COSO4.MGO\] done clear
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• question_answer10)
        The chemical name of lime stone is                           [UPPCS]
  A)
  Calcium chloride done clear
  B)
  Calcium oxide done clear
  C)
  Calcium carbonate done clear
  D)
  Calcium done clear
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• question_answer11)
        Blue vitriol is                    [UPPCS]
  A)
  Copper sulphate done clear
  B)
  Calcium sulphate done clear
  C)
  Iron sulphate done clear
  D)
  Sodium sulphate done clear
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• question_answer12)
        The main component of Gobar gas is?                       [CDS]
  A)
  Chlorine          done clear
  B)
                   Hydrogen done clear
  C)
  Ethylene          done clear
  D)
                   Methene done clear
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• question_answer13)
        The main of component of Biogas is
  A)
  Methane    done clear
  B)
  Ethane done clear
  C)
  Propane           done clear
  D)
                   Butane done clear
  View Solution play_arrow

• question_answer14)
        Which chemical was an important symbol in our freedom struggle?                      [CDS]
  A)
  Glucose           done clear
  B)
                   Fertilizer done clear
  C)
  Medicine          done clear
  D)
                   Sodium chloride done clear
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• question_answer15)
  Match the following columns? [NDA]

  	Column I (Fuel Gas)		Column II (Major constituent)
  A.	CNG	1.	Carbon monoxide, hydrogen
  B.	Coal gas	2.	Butane, propene
  C.	LPG	3.	Methane, ethane
  D.	Water gas	4.	Hydrogen, methane, carbon monoxide

  A)
  A-2,   B-1,   C-3,   D-4 done clear
  B)
  A-2,   B-4,   C-3,   D-1 done clear
  C)
  A-3,   B-4,   C-2,   D-1 done clear
  D)
  A-3,   B-1,   C-2,   D-4 done clear
  View Solution play_arrow

• question_answer16)
        The phenomenon of radioactivity was invented by
  A)
  Maril Curie done clear
  B)
                   Pierre Curie done clear
  C)
  Henry Bacquerel done clear
  D)
         J.J Thompson done clear
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• question_answer17)
        Which one of the following is used in the preparation of antiseptic solution?                    [CDS]
  A)
  Potassium nitrate done clear
  B)
  Iodine done clear
  C)
  Iodine chloride done clear
  D)
  Potassium chloride done clear
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• question_answer18)
        Aqua-regia used by alchemists to separate silver and gold is a mixture of                       [CDS]
  A)
  hydrochloric acid (concentrated) and nitric acid (concentrated) done clear
  B)
  hydrochloric acid  (concentrated) and sulphuric acid (concentrated) done clear
  C)
  nitric acid (concentrated) and sulphuric acid (concentrated) done clear
  D)
  hydrochloric acid (dilute) and sulphuric acid (dilute) done clear
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• question_answer19)
        Nail polish remover contains                           [CDS]
  A)
  acetone     done clear
  B)
         benzene done clear
  C)
  formaldehyde      done clear
  D)
         acetic acid done clear
  View Solution play_arrow

• question_answer20)
        Which one among the following is a sin smelling agent added to LPG cylinder to help the detection of gas leakage?                       [CDS]
  A)
  Ethanol           done clear
  B)
                   Thioethanol done clear
  C)
  Methane           done clear
  D)
                   Chloroform done clear
  View Solution play_arrow

• question_answer21)
        Vermicompost is an/a                           [CDS]
  A)
  inorganic fertilizer done clear
  B)
  toxic substance done clear
  C)
  organic bio fertilizer done clear
  D)
  synthetic fertilizer done clear
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• question_answer22)
        Which of the following is a good lubricant?                           [CDS]
  A)
  Diamond powder done clear
  B)
         Graphite powder done clear
  C)
  Molten carbon done clear
  D)
  Alloy of carbon and iron done clear
  View Solution play_arrow

• question_answer23)
        The main constituent of vinegar is
  A)
  Acetic acid done clear
  B)
         Ascorbic acid done clear
  C)
  Citric acid     done clear
  D)
         Tartaric acid done clear
  View Solution play_arrow

• question_answer24)
        To weld metals together, high temperature is required. Such a high temperature is obtained by burning                     [NDA]
  A)
  Acetylene in oxygen done clear
  B)
  LPG in oxygen done clear
  C)
  Methane in oxygen done clear
  D)
  Acetylene in nitrogen done clear
  View Solution play_arrow

• question_answer25)
        Which one is a sublime substance?
  A)
  Table salt done clear
  B)
  Sugar done clear
  C)
  Iodine done clear
  D)
  Potassium Iodide done clear
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• question_answer26)
        What happens when a fixed amount of oxygen gas is taken in a cylinder and compressed at constant temperature?

  A. Number of collisions of oxygen molecules at per unit area of the wall of the cylinder increase.

  B. Oxygen (\[{{O}_{2}}\]) gets converted into ozone (\[{{O}_{3}}\]).

  C. Kinetic energy of the molecules of oxygen gas increases.

  A)
  A and C                 done clear
  B)
         B and C done clear
  C)
  C only                   done clear
  D)
         A only done clear
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• question_answer27)
        A gas can be compressed to a fraction of its volume. The same volume of a gas can be spread all over a room. The reason for this is that
  A)
  the volume occupied by molecules of a gas is negligible as compared to the total volume of the gas. done clear
  B)
  gases consists of molecules which are in a state of random motion done clear
  C)
  gases consist of molecules having very large inter-molecular space which can be reduced or increased under ordinary conditions done clear
  D)
  None of these done clear
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• question_answer28)
        Select the correct order of evaporation for water, alcohol, petrol and kerosene oil
  A)
  water > alcohol > kerosene oil > petrol done clear
  B)
  alcohol > petrol > water > kerosene oil done clear
  C)
  petrol > alcohol > water > kerosene oil done clear
  D)
  petrol > alcohol > kerosene oil > water done clear
  View Solution play_arrow

• question_answer29)
        Non-reacting gases have a tendency to mix with each other. This phenomenon is known as
  A)
  chemical reaction                        done clear
  B)
  diffusion done clear
  C)
  effusion                           done clear
  D)
  explosion done clear
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• question_answer30)
  Boyle's law states that the
  A)
  pressure of a gas is directly proportional to the temperature at constant volume done clear
  B)
  pressure of a gas is inversely proportional the volume at constant temperature done clear
  C)
  volume is directly proportional to the temperature at constant pressure done clear
  D)
  None of the above done clear
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• question_answer31)
        The boiling point of alcohol is \[78{}^\circ C\]. What is this temperature in Kelvin scale
  A)
  373 K               done clear
  B)
         351 K done clear
  C)
  375 K                done clear
  D)
                   78 K done clear
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• question_answer32)
        At higher altitudes
  A)
  boiling point of a liquid increases done clear
  B)
  boiling point of a liquid decreases done clear
  C)
  no change in boiling point done clear
  D)
  melting point of solid increases done clear
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• question_answer33)
        When we put some crystals of potassium permanganate in a beaker containing water, we observe that after sometime whole water has turned pink. This is due to
  A)
  boiling done clear
  B)
  melting of potassium permanganate crystals done clear
  C)
  sublimation of crystals done clear
  D)
  diffusion done clear
  View Solution play_arrow

• question_answer34)
        Which of the following processes is known as fusion?
  A)
  change of liquid to solid done clear
  B)
  change of solid to liquid done clear
  C)
  change of liquid to vapour done clear
  D)
  change of gaseous state to solid state done clear
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• question_answer35)
        When a gas is compressed keeping temperature constant, it results in
  A)
  increase in speed of gaseous molecules done clear
  B)
  increase in collision among gaseous molecules done clear
  C)
  decrease in speed of gaseous molecules done clear
  D)
  decrease in collision among gaseous molecules. done clear
  View Solution play_arrow

• question_answer36)
        A pungent smell often present near the urinals is due to
  A)
  sulphur-di-oxide       done clear
  B)
  chlorine done clear
  C)
  ammonia                         done clear
  D)
         urea done clear
  View Solution play_arrow

• question_answer37)
        Kerosene is a mixture of
  A)
  aromatic hydrocarbons done clear
  B)
  aliphatic hydrocarbons done clear
  C)
  saturated hydrocarbons done clear
  D)
  alicyclic hydrocarbons done clear
  View Solution play_arrow

• question_answer38)
        The oxide of which of the following elements is used as a coolant?
  A)
  Silicon                   done clear
  B)
         Nitrogen done clear
  C)
  Carbon      done clear
  D)
         Phosphorus done clear
  View Solution play_arrow

• question_answer39)
        Which one of the following is not a mixture?                        [NDA]
  A)
  Air               done clear
  B)
         Mercury done clear
  C)
  Milk            done clear
  D)
         Cement done clear
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• question_answer40)
        Which one among the following statements regarding the properties of mixtures and compounds is not correct?                                                                  [NDA]
  A)
  A mixture shows the properties of its constituents but the properties of a compound are entirely different from its constituents done clear
  B)
  A mixture may be homogeneous or heterogeneous but a compound is a homogeneous substance done clear
  C)
  The constituents of a mixture can be separated by physical methods but those of a compound cannot be separated by physical methods done clear
  D)
  Energy is either absorbed or evolved during the preparation of a mixture but not in the preparation of a compound done clear
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• question_answer41)
        Which one among the following is not a mixture?
  A)
  Graphite    done clear
  B)
         Glass done clear
  C)
  Brass           done clear
  D)
         Steel done clear
  View Solution play_arrow

• question_answer42)
        The latest discovered state of matter is                       [NDA]
  A)
  solid done clear
  B)
  Bose-Einstein condensation done clear
  C)
  plasma       done clear
  D)
  liquid done clear
  View Solution play_arrow

• question_answer43)
        Which one of the following is not a mixture?
  A)
  Toot paste        done clear
  B)
                   Toilet soap done clear
  C)
  Baking soda     done clear
  D)
                   Vinegar done clear
  View Solution play_arrow

• question_answer44)
        Iodised salt is a                          [CDS]
  A)
  mixture of potassium iodide and common salt done clear
  B)
  mixture of molecular iodide and common salt done clear
  C)
  compound formed by combination of potassium iodide and common salt done clear
  D)
  compound formed by molecular iodine and common salt done clear
  View Solution play_arrow

• question_answer45)
        What type of mixture is smoke?                       [CDS]
  A)
  Solid mixed with a gas done clear
  B)
  Gas mixed with a gas done clear
  C)
  Liquid mixed with a gas done clear
  D)
  Gas mixed with a liquid and a solid done clear
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• question_answer46)
        Iron sheet kept in moist air covered with rust. Rust is                       [CDS]
  A)
  an element done clear
  B)
  a compound done clear
  C)
  a mixture of iron and dust done clear
  D)
  a mixture of iron, oxygen and water done clear
  View Solution play_arrow

• question_answer47)
        What is the term used to denote the critical temperature at which the air becomes saturated with vapour and below which the condensation is likely to begin?                        [NDA]
  A)
  Condensation point done clear
  B)
  Evaporation point done clear
  C)
  Dew point done clear
  D)
  Point of critical temperature done clear
  View Solution play_arrow

• question_answer48)
        Tails of comets are visible due to
  A)
  Tyndall Effect     done clear
  B)
  Reflection done clear
  C)
  Brownian movement done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer49)
        The process used to separate oil and water is
  A)
  distillation                        done clear
  B)
  sublimation done clear
  C)
  separating funnel done clear
  D)
         chromatography done clear
  View Solution play_arrow

• question_answer50)
        Amalgam is a solution of
  A)
  solid in solid      done clear
  B)
                   solid in liquid done clear
  C)
  liquid in solid     done clear
  D)
                   liquid in liquid done clear
  View Solution play_arrow

• question_answer51)
        Which one of the following is correct? Butter is                     [CDS]
  A)
  a super cooled oil done clear
  B)
         an emulsion done clear
  C)
  a molecular solid done clear
  D)
         None of these done clear
  View Solution play_arrow

• question_answer52)
        Which one of the following petroleum refinery products has the lowest boiling point?                           [CDS]
  A)
  Kerosene          done clear
  B)
         Diesel done clear
  C)
  Gasoline           done clear
  D)
         Lubricating oil done clear
  View Solution play_arrow

• question_answer53)
        Which one of the following is not a mixture?                        [CDS]
  A)
  Toot paste          done clear
  B)
         Toilet soap done clear
  C)
  Baking soda        done clear
  D)
         Vinegar done clear
  View Solution play_arrow

• question_answer54)
        Iodised salt is a                          [CDS]  
  A)
  mixture of potassium iodide and common salt        done clear
  B)
  mixture of molecular iodide and common salt        done clear
  C)
  compound formed by combination of potassium  iodide and common salt                          done clear
  D)
  compound formed by molecular iodine and common salt                                           done clear
  View Solution play_arrow

• question_answer55)
        At NTP, the least volume will be occupied by 15 g of which one of the following?                     [NDA] 
  A)
  \[N{{H}_{3}}\]                 done clear
  B)
         \[{{O}_{2}}\]                    done clear
  C)
  \[{{N}_{2}}\]            done clear
  D)
         Ne                    done clear
  View Solution play_arrow

• question_answer56)
  What is the weight of one atom of Hydrogen in grams? [NDA]
  A)
  \[6.23\times {{10}^{-23}}\] done clear
  B)
  \[1.66\times {{10}^{-24}}\] done clear
  C)
  \[6.62\times {{10}^{-24}}\] done clear
  D)
  None of these                                    done clear
  View Solution play_arrow

• question_answer57)
        Which one of the following elements shows variable equivalent mass?                            [NDA]
  A)
  Zinc                       done clear
  B)
         Silver done clear
  C)
  Calcium             done clear
  D)
                   Iron           done clear
  View Solution play_arrow

• question_answer58)
                 The atomic weights are expressed in terms of atomic mass unit. Which one of the following is used as a standard?                                      [NDA]
  A)
  \[^{\text{1}}{{\text{H}}_{\text{1}}}\]               done clear
  B)
                   \[^{\text{12}}{{C}_{6}}\] done clear
  C)
  \[^{\text{16}}{{O}_{8}}\]                done clear
  D)
                   \[^{35}C{{I}_{17}}\] done clear
  View Solution play_arrow

• question_answer59)
        Which one of the following mixtures is homogeneous?                     [NDA]
  A)
  Starch and sugar done clear
  B)
                                     Methanol and water done clear
  C)
  Graphite and charcoal                              done clear
  D)
  Calcium carbonate and calcium bicarbonate            done clear
  View Solution play_arrow

• question_answer60)
        In which one of the following situations a chemical reaction does not occur?                            [NDA]
  A)
  Common salt is exposed to air done clear
  B)
  Coal is burnt in air done clear
  C)
  Sodium is placed in water done clear
  D)
  Iron is kept in moist air done clear
  View Solution play_arrow

• question_answer61)
        Which of the following is the best example of the law of conservation of mass?                        [NDA]
  A)
  When 12 gm. of carbon is heated in vacuum, there is no change in mass done clear
  B)
  Weight of platinum wire is the same before and after heating done clear
  C)
  A sample of air increases in volume when heated at constant pressure but mass remains unchanged done clear
  D)
  12 gm. of carbon combines with 32 gm. Of oxygen to, give 44 gm. of carbon dioxide. done clear
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